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The FBI says it also arrested more than 150 alleged pimps in 76 U.S. cities during Operation Cross Country VII.

Sources tell CNET °µºÚ±¬ÁÏ that government investigators have asked for such data. Whether any company has turned the information over isn't clear. The report is the latest in a string of stories in recent weeks about steps the National Security Agency and FBI are reportedly taking.

The latest Guardian report on U.S. electronic surveillance says the company granted accesses to email and chat services.

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The former Justice Department official under President George W. Bush is best-known for thwarting an effort by White House aides to reauthorize a warrantless-wiretapping program.

President Obama will nominate Jim Comey to be the country's next FBI director on Friday. Comey is best-known for raising alarms about a secret surveillance program during the Bush years. That issue has taken on new resonance after the latest revelations of government surveillance.

Robert Mueller told a Senate panel on Wednesday that the FBI used drones rarely and for surveillance proposes. The DEA and the ATF had both revealed they possessed drones.

Officials say the suspects did not acquire a radiation source for a weapon, but they finished building a remote control that was meant to operate it.

Former University of Southern California professor Walter Lee Williams was caught at a Mexican beach town, a day after being placed on the FBI's Ten Most Wanted Fugitives list on charges of sexual exploitation of children.

Robert Mueller told the Senate the FBI used drones rarely and for surveillance proposes. The DEA and the ATF had both revealed they possessed drones.